US Patent 7903726 Signal receiving apparatus and signal power prediction method thereof

A signal receiving apparatus includes an indicating unit, a receiving, a system unit which comprises a plurality of electronic components to provide signal processing, a storing unit to store information related to a noise level, and a controlling unit to estimate a signal power level of the data received by the receiving unit, to compare the estimated signal power level of the data with the noise level generated by a power supply to the system unit, and to control the indicating unit to indicate whether the data can be received.